采用大庆原油生产的高粘度指数基础油和25号变压器油为基础油,加入抗氧、防锈等多种添加剂调制而成。
Daqing crude oil production using a high viscosity index base oil and 25 oil-based transformer oil, add antioxidant, anti-rust additives, such as by modulation.
利用小波变换系数的模值与信号奇异性指数之间的关系,从调频信号中提取出调制信号的频率。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
一定的传输距离和发射光功率情况下,不同的子载波数存在一个最佳的光调制指数,使得系统载噪比最大;
Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.
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